Growing Sweet Corn in Nyandarua

Soil suitability analysis based on Nyandarua's nutrient profile

Nyandarua County is a solid choice for Sweet Corn, with a soil-match score of 66/100. At an average pH of 5.38 the soil is moderately acidic, below Sweet Corn's preferred 5.8–7 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is phosphorus — measured at N 1.28 g/kg, P 14 mg/kg, K 166 mg/kg against this crop's high/high/medium demand — so the fertilizer plan below prioritises closing that deficit. Sweet Corn prefers loam soils, while Nyandarua is largely clay, so drainage and organic-matter management matter more here. Sweet Corn's full potential is about 8,000 kg/acre (~KES 320,000/acre at KES 40/kg), but at Nyandarua's 66/100 suitability a realistic target here is closer to 6,600 kg/acre (~KES 264,000/acre) unless the constraints above are addressed.